{{Short description|Species of gastropod}} {{Speciesbox | name = Shoal sprite | image = Amphigyra alabamensis shell.jpg | image_caption = Shells of ''Amphigyra alabamensis'' | status = EX | status_system = IUCN2.3 | status_ref = <ref name="iucn status 15 November 2021">{{cite iucn |author=Bogan, A.E. |date=2000 |title=''Amphigyra alabamensis'' |volume=2000 |article-number=e.T1168A3301341 |doi=10.2305/IUCN.UK.2000.RLTS.T1168A3301341.en |access-date=15 November 2021}}</ref> | status2 = GX | status2_system = TNC | status2_ref = <ref name=NS>{{cite NatureServe |id=2.118721 |title=''Amphigyra alabamensis'' |access-date=2 March 2026}}</ref> | taxon = Amphigyra alabamensis | authority = Pilsbry, 1906<ref name="Pilsbry">Pilsbry H. A. September 1906. ''Two new American genera of Basommatophora''. [https://archive.org/details/nautilus20amer The Nautilus, volume 20], number 5, pages [https://archive.org/stream/nautilus20amer#page/n67/mode/2up 49]–50.</ref> | synonyms = | range_map = MobileAlabamaCoosa3.png | range_map_caption = Location of the Coosa River, in green }}
The '''shoal sprite''' (''Amphigyra alabamensis'') was a species of small, air-breathing, freshwater snail, an aquatic pulmonate gastropod mollusk in the family Planorbidae, the ram's horn snails. This species was endemic to Alabama, but it is now extinct.
[[Image:Amphigyra alabamensis radula.jpg|thumb|Drawing of detail of the radula of ''Amphigyra alabamensis'']]
== Original description == Species ''Amphigyra alabamensis'' was originally described by Henry Augustus Pilsbry in 1906.<ref name="Pilsbry"/>
Type locality is Coosa River near or in Wetumpka, Alabama.
Pilsbry's original text (the type description) reads as follows:
{{Cquote| ''Amphigyra alabamensis'' n. sp. PI. III, figs. 1, 2. The shell is shaped like a convex ''Crepidula'', closely, finely and sharply striate spirally, and of a pale yellowish-corneous tint. The last whorl flares in a raised ledge at the baso-columellar region, the back being very convex. The spire is slightly sunken, depressed. The raised parietal margin of the lip is abruptly kinked where it passes across the preceding whorl. The columellar plate or deck extends over nearly one-third the total transverse length of the aperture. Alt. 1.1, diam. 2 mm. Wetumpka, Alabama, on the under surfaces of rocks in swift water. }}
== References == {{Reflist}}
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Category:Planorbidae Category:Extinct gastropods Category:Gastropods described in 1906 Category:Taxonomy articles created by Polbot Category:Taxa named by Henry Augustus Pilsbry